04-22-1985 Council Packet - Laserfiche WebLink

Home Browse Search

Repairs to existing 750 square feet of drainfield in trenches (installed): $1750-2500 1-1000 gallon precast tank (installed): $500-1000 Pump tank, pump, alarm system, electrical work (installed): $1,250-2,000 Totally New System 2-1000 gallon tanks, 750 s.f. trench drainfield $3,000-4,500 w/pump tank and pump add $1,250-2,000 Mound -type drainfield system (complete) $6,500-10,000 OPTION 3. Installation of innovative on -site systems including consideration of composting or incinerating devices and shared drain - field systems. A number of innovative on -site sewage treatment systems exist which might have applicability to the Crystal Bay area under certain circumstances. Various types of recirculating -fluid waste transport systems are on the market, which use a recyclable fluid (water, mineral oil, etc.) to transport toilet waste either to a holding tank and incinerator unit, or to a self contained treatment unit. These systems are quite complex in design and prices range from $13,000-30,000. The demon- strated applicability for these units is to serve a building or busi- ness with little or no "graywater" (sink, shower, laundry) use. These units wou' not be practical to serve the needs of Crystal Bay. A second type of recirculating toilet considered is the portable unit used in boats and recreational vehicles. These units have a relatively small holding tank capacity and are not suited to full time residential family usage. Two innovative types of toilets which are more appropriate under the constraints of a holding tank system include incinerator toilets and composting toilets. Incinerator toilets are a self contained toilet and waste treatment unit which uses electricity or burns natural gas to reduce human waste to a clean ash which needs to be removed cn a regular basis. Cost range for the units is about $1,500- 2,000 plus connection and installation costs. These units do require some maintenance and energy costs in either case are a consideration. Composting toilets provide a chamber in which proper environ- mental conditions are maintained for biological breakdown of human waste. The resultant compost must be removed on an occasional basis. Most units use some type of electrical heating element. Cost of the units ranges from $800-2,000 plus installation costs. One such system is now in use within the City in conjunction with a graywater holding tank, on a property too small to support any t.ypc of septic system (Stubbs Bay area). 10